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文中分析了中生代大型、超大型火山岩型铀矿床产出的特异部位──含矿火山塌（断）陷的地质环境，将其归纳为＂近带、伴盆、早洼、晚隆、切壳、酸底、泥化＂１４字特征。在讨论该类铀矿床的形成机制的基础上，提出了特异部位的９条定位标志，即：位处１，２级构造单元结合部位的构造岩浆活动带；构造岩浆活动带边部的大型火山沉积盆地；火山沉积盆地边部的港湾状小型火山塌（断）陷；火山塌（断）陷的火山岩发育充分；火山塌（断）陷在盆地发展晚期隆起；火山塌（断）陷受一条长期活动的切壳断裂控制；火山塌（断）陷的基底发育有多期花岗岩体；火山塌（断）陷的盖层遭受强烈的以泥化为主的中低温蚀变作用；蚀变带有硅化、低温钠长石化、铁绿泥石化等蚀变作用叠加，并见有铀及其相关元素异常。
The paper analyzes the specific parts of the Mesozoic large-scale and ultra-large volcanic-type uranium deposits ─ ─ geological conditions of collapsing (breaking) the ore-bearing volcanoes, and summarizes them as “near belt, , Acid bottom, mud ”14 characters. On the basis of discussing the formation mechanism of these uranium deposits, nine localization markers of specific sites are proposed, namely tectonic magmatic activity belts located at the junction of structural units 1 and 2, large volcanoes forming the margins of magmatic activity belts Sedimentary basins; basin-shaped volcanic collapse (broken) depression at the edge of the volcanic sedimentary basin; volcanic rocks fully submerged (broken) in volcanic rocks; volcanic collapsed (broken) subsidence in the late uplift of the basin; volcano collapse Long-term activities of the crustal fault control; volcanic (broken) depression developed multi-stage basement granite; volcanic collapse (broken) cap rock subjected to strong mud-based low-temperature alteration; alteration There silicification, low temperature sodium long petrochemical, iron chlorite and other alteration superposition, and see uranium and its related elements anomalies.